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A ballistic body is a body which is free to move, behave, and be modified in appearance, contour, or texture by ambient conditions, substances, or forces, as by the pressure of gases in a gun, by rifling in a barrel, by gravity, by temperature, or by air particles. A ballistic missile is a missile designed to operate in accordance with the laws of ballistics. Forensic ballistics involves analysis of bullets and bullet impacts to determine the type. Separately from ballistics information, firearm and tool mark examinations involve analyzing firearm, ammunition, and tool mark evidence in order to establish whether a certain firearm or tool was used in the commission of a crime. [Anthony A. Braga,1 Ph.D. and Glenn L. Pierce,2 Ph.D.]
The specifications like Forensic ballistics, the science of analyzing firearm usage in crimes, Internal ballistics, the study of the processes originally accelerating the projectile, for example the passage of a bullet through the barrel of a rifle, Transition ballistics, the study of the projectile's behavior when it leaves the barrel and the pressure behind the projectile is equalized, External ballistics, the study of the passage of the projectile through space or the air, Terminal ballistics, the study of the interaction of a projectile with its target, whether that be flesh (for a hunting bullet), steel (for an anti-tank round), or ...